Electric radiator



April 4, 1939- J. DEUCHES 2,153,078

ELECTRIC RADIATOR Filed Aug. lO, 1936 2 Sheets-Sheet l dbs@ b 75ml/:bas

I 1 HH 24 23 27 Nujgz IMM April 4, 1939.

J. DEUCHES 2,153,078

ELECTRIC RADIATOR Filed Aug. lO, 1936 2 SheeJcxs-Sheell 2 gmc/Wto@ Jse.b .27mm/55.5' 26' j Patented Apr. 4, 1939 UNITED STATES PATENT OFFICE 6Claims.

This invention relates to electric radiators in general, and moreparticularly to radiators of the portable domestic type.

The main object of the invention is toprovide a radiator of thecharacter referred to, of simple construction and pleasing appearance,which can be cheaply manufactured in quantities, and which can bereadily assembled and disassembled, for the purpose of replacement andrepair.

Other objects of the invention will become apparent as the detaileddescription thereof proceeds.

In the drawings:

Figure 1 is an end elevation of one form oi1 the invention;

Figure 2 is a side elevation of the device shown in Figure 1, part ofone section of the radiator casing being broken away to show details ofconstruction;

Figure 3 is a broken vertical transverse section, to an enlarged scale,taken on the line 3-3 of Figure 2;

Figur-e 4 is a horizontal section, to an enlarged scale, taken on theline 4 4 of Figure 2;

Figure 5 is a broken side elevation of a modified form of the invention,one section of the casing of one of the units being removed to showdetails of construction;

Figure 6 is a horizontal transverse section taken on the line 6-6 ofFigure 5;

Figure 7 is a broken elevation of another form of the invention, onesection of the casing being removed to show details of construction;

Figure 8 is a vertical transverse section taken on the line 8-8 ofFigure 7;

Figure 9 is a fragmentary detail, in perspective, of a substitute formof coil support; and

Figure 10 is a section through a porcelain bushing adapted for use inthe support illustrated in Figure 9.

In all forms of lthis invention, it is preferred that the electricheating coil shall be enclosed in casings mounted on a base; and shallbe so constructed as to be readily moved from one location to another,and to be connected detachably and readily, through the usual plugconnection, to a source of electric supply. As shown particularly inFigures 1-4 of the drawings, the invention comprises a base I providedwith feet 2 adapted to support the base at any desired distance from theoor of an apartment or room wherein the heater is to be used.

Any desired number of casings enclosing electrical heating units, may bemounted on the base I, the size of which will depend, of course, uponthe dimensions of the room to be heated, Whatever the size of the basemay be, and the number of heating units moun-ted thereon, it will beunderstood that all of the casing units are substantially the same inconstruction. Only two of these units, 3 and 4 are illustrated in Figure1 of the drawings. Since both units are structurally identical, only oneof them, the unit 3, will be described in detail.

The casing unit 3 is formed in two sections, t and 1. The section 6 isarcuate in cross-section, substantially as shown in Figure 4 of thedrawings. The lower end of the section 6 is provided with a flange 8,adapted to seat on the base I, and to be suitably secured thereto as bybolts 9. The upper lendl of the section 6 is bent inwardly and isprovided at its outer edge with a flange Ill. This ange I6 forms acontinuation of, and lies in the same plane, as the flanges I I and I2formed on the opposite Vertical edges of the section 6.

The flanges I I and I2 are return bent to form grooves I3 and I4,respectively, adapted to receive slidably the flanges I5 and I6 formedon the opposite edges of the section 'I. The upper edge of the section'I is bent and shaped to form a flange I1, which ts closely against theange Il). The lower end of the section 'I is also provided with anoutwardly directed flange I8 adapted to seat upon the base I, and to besuitably secured thereto as by bolts I9. It will be evident from thedrawings that access may be had to the interior of the casing 3 merelyby loosening the bolts I9 on the flange I8, and then sliding Ithesection I in the grooves I3 and I4 of the section 6.

It is intended that one of the sections, in this case the section 6,shall remain xed tothe base I and shall support the heating elements ofthe radiator independently of the other section 1, which may be removedwithout in any way disturbing the heating elements supported by thefixed section 6.

In the form of the invention shown in Figures 1 4, the xed section 6 hassecured near its, upper and lower end, a pair of bars 20 and 2Il bent attheir opposite ends to contact with the inner surface of the section 6and to be suitably secured thereto as by welding. The bars 2U and 2| areprovided with a plurality of spaced apart po-rcelain bushings 22,screwthreaded into correspondingly threaded apertures formed in the bars20 and 2|.

A resistance coil 23, strung through the bushings mounted on the bars 20and ZI, is connected at one end to a wire 24 leading from a switch 25conveniently mounted upon the skirt 26 of the base I. The other end ofthe. coil 23 is connected by wire 21 to the switch 25, which isconnected to wiring 28 of any suitable length, and provided with a plug29 adapted to be connected detachably to any outlet for a source ofelectric supply.

In the form of the invention shown in Figures 5 and 6, the casing forthe heating element is the same as in the other form. In this case,however, a series of parallel heating elements are connected to a pairof parallel bus bars suitably supported at their opposite ends on thefixed section 6. The bus bars 30 and 3| are mounted at their oppositeends in pairs of blocks 32 and 33, 34 and 35, respectively. Each ofthese blocks may be made of insulating material, such as porcelain.Since all are identical in construction, only one of them, the block 34,will be described in detail. Block 34 is provided at its lower end witha vertical groove 36 adapted to seat in a flange 31 which extendsupwardly from the lower end of an angle bracket 38 suitably secured, asby welding, to the inner face of the ilxed section 6. Preferably, theflange 31 is screwthreaded to receive the shank of a machine screw 39extending through an aperture in the bushing adapted to register withthe aperture in the flange 36.

The block 34 is also provided with a horizontal groove 48 adapted toreceive one end of the bus bar 3|. A screw 4| extends through a verticalaperture formed in the block 34 crossing the groove 4|), to engage ascrewthreaded aperture formed in the bus bar 3| registering with thevertical aperture formed in the block 34. The other end of the bar 3| isconnected in the same manner to the block 35. The bus bar 30 issimilarly connected at its opposite ends to the insulating blocks 32 and33 supported in similar angle iron brackets secured to the fixed section6. In this form, the heating elements comprise a series of separatecoils 42 arranged parallel to each other and secured at their oppositeends to the parallel bus bars 30 and 3|. The main wire 43 is connectedat one end to the bus bar 3|), and at its other end to the usual switch,which in turn is connected to a source of electric heating energy. Theother main wire 44 is connected to the aforesaid switch at one end, andto the bus bar 3| at its other end, as will be apparent from thedrawings.

It will be apparent that this form of the drawings presents someadvantages over the first form, inasmuch as the heating element is builtup of a series of separate coils, any one of which may be detached fromthe bus bars without disturbing the positions of the remaining coils.

A cheaper form of the invention is illustrated in Figures '7 and 8. Inthis form, a continuous heater coil 45 is supported on the section 6 bya pair of porcelain tubes 41 and 48, which encase the supporting rods 49and 50 having their opposite ends flattened to seat in the slots 40 ofthe blocks 32, 33, 34 and 35. These ilattened ends are apertured toregister with the apertures in the block which receive the screws 4|,and to be engaged by s'aid screws for locking the porcelain tubes 41 and48 in position. The coil 45 is tensioned and strung around the tubes 48and 49 in zig-zag manner; and is connected at its opposite ends by wires46 and 5| to the usual switch.

Figures 9 and l0 illustrate a substitute for the parallel supportingbars shown in the other figures of the drawings. In this form of theinvention, each bar is formed by a heavy wire 52 coiled around a seriesof porcelain tubular supports 53; and the ends of the wire 52 are bentto provide members 54 adapted to be suitably supported by brackets 55secured to the inner face of casing section 6.

It is to be understood that the invention is not to be considered aslimited to the specific construction and arrangement described herein,since it is evident that many changes may be made without departing fromthe scope of the invention as defined by the claims appended hereto.

A very important feature of the invention resides in the method ofconnecting the heating coils to the control switch. As shown in Figures2 and 3, the heating coil 23 is connected by heatresistant leads 24 tothe switch 25, the connecting joints being made in the porcelainbushings 23'. In the same manner the heating coil 45 of the modiiicationshown in Figures '1 and 8 is connected at opposite ends by heatresistant leads 46 and 5| to the switch, the joints being made in thebushings 46. Casing these joints in the porcelain bushings eliminatesdanger of conflagration in case arcing or sparking should occur.

What I claim is:

1. In an electric heater, a base, a casing supported by said base andextending perpendicular thereto, and comprising a pair of sectionsslidably connected to each other, an electric heating means mountedonone of said sections only.

2. In an electric heater, a base, a casing supported by said base andextending perpendicular thereto, and comprising a section iixed to thebase, and a second section slidably connected to the first namedsection, an electric heating means mounted on the fixed section only.

3. An electric heater comprising a support, a casing comprising a pairof slidably connected sections extending vertically from said support, apair of bars secured in parallel spaced apart relationship to one ofsaid sections, bushings spaced apart on each of said bars, a heatingcoil extending zig-zag through said bushings, and means connecting theends of said coil to a source of electrical supply, the other sectionbeing removable independently of said bars and coil.

4. In an electric heater, a base, a casing supported by said base andextending perpendicularly thereto, and comprising a pair of sectionsslidably and detachably secured to each other, a pair of supporting barsspaced apart on and fixed to one of said sections, and electric heatingmeans secured to said bars.

5. In an electric heater, a base, a casing extending perpendicularlyfrom said base and comprising a pair of sections slidably and detachablysecured to each other, bus bars, insulating means for mounting said barson one of said sections, heating coils detachably connected at theiropposite ends to said bars, and means connected to said bus bars forelectrically heating said coils.

6. In an electric heater, a base, a casing extending perpendicularlyfrom said base and comprising a pair of sections slidably and detachablySecured to each other, bus bars, insulating means for mounting said barson one of said sections. heating coils detachably connected at theiropposite ends to said bars, means for connecting one of said bars to oneterminal of a source of electric current, and means for connecting theother bar to the other terminal of said source.

JOSEPH DEUCI'ES.

